Tarbat (Gaelic , meaning 'a crossing or isthmus') is a civil parish in Highland, Scotland, in the north-east corner of Ross and Cromarty. The parish is a promontory between Dornoch Firth to the north-west and Moray Firth to the east, while to the south it borders the parish of Fearn. The peninsula is relatively flat, the highest point being the hill adjacent to Geanies House which reaches , on the southern border of the parish. The coast along the Dornoch Firth is about in length, while the Moray Firth coast is about . The latter coast has a rock-bound front, with progressively higher cliffs south of Rockfield, reaching . Along the Dornoch Firth the shore is not steep and near Inver the foreshore is almost wide. The village of Portmahomack, the main settlement in the parish, is sited on the Dornoch Firth northeast of Tain. Tarbat Ness, the headland of Tarbat separating the Dornoch and Moray Firth coasts, lies northeast of Portmahomack. It is high and the site of Tarbat Ness Lighthouse, which dates from 1830. Just over west-southwest of Tarbet Ness lighthouse, is the site of Castlehaven fort, by a creek of that name (Port-Chasteil is Gaelic). Although there is no building remaining, the foundation of a considerable wall is traceable, which defended the fort on the landward side. The title Baron Castlehaven is named after this fort and is held as a subsidiary title by the Earls of Cromartie. The hamlet of Wilkhaven lies on the east coast southwest of Tarbet Ness lighthouse. The area to its north is known as Wilkhaven Muir. Situated north of Rockfield on the east coast, Ballone Castle, which was also known as Tarbat castle, was reputedly built by the Earls of Ross, but came into possession of the family of Viscount Tarbat and the Earl of Cromartie. Previously a ruin, it has recently been restored as a private house. The Geanies House, the only mansion house in the parish, is situated on the eastern coast close by the southern border with the parish of Fearn. Here, coastal cliffs rise from the shore to a height of around . In the west of the parish near Inver is Arboll, an area of scattered farms and the site of a former township or hamlet. Arboll is dissected by Arboll Burn, which forms the community council boundary at this point. At the last census (2011),